{"product_id":"74vhct240asjx","title":"74VHCT240ASJX","description":"\u003cp\u003eThe 74VHCT240ASJX is a high-speed inverting buffer from Fairchild Semiconductor, part of the 74VHCT logic family. It features two channels with 3-State outputs, capable of sinking or sourcing 8mA. Operating from a 4.5V to 5.5V supply, it is ideal for 5V systems requiring signal inversion and buffering. The TTL-compatible inputs make it suitable for mixed-voltage environments. This buffer is commonly used in bus interfacing, signal conditioning, and driving LEDs or other loads. Its 20-SOIC package is compact and suitable for space-constrained PCB designs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTTL-Compatible Inputs: Simplifies interfacing with 3.3V logic, ensuring reliable signal detection in mixed-voltage systems.\u003c\/li\u003e\n\u003cli\u003e3-State Outputs: Enables bus sharing and multiplexing, reducing the need for external bus isolation components.\u003c\/li\u003e\n\u003cli\u003eHigh Output Current (8mA): Can directly drive LEDs and other low-power loads, reducing component count.\u003c\/li\u003e\n\u003cli\u003eWide Operating Temperature Range (-40°C to 85°C): Suitable for industrial and automotive environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eBus Interfacing and Isolation\u003c\/h3\u003e\u003cp\u003eThe 3-State outputs allow the 74VHCT240A to be used for bus isolation, preventing data contention when multiple devices share a common data line. The high-impedance state effectively disconnects the buffer from the bus when not selected.\u003c\/p\u003e\u003ch3\u003eSignal Inversion in Control Logic\u003c\/h3\u003e\u003cp\u003eAs an inverting buffer, it can be used to invert control signals such as reset lines or enable signals, ensuring correct logic polarity for various peripherals in a 5V digital system.\u003c\/p\u003e\u003ch3\u003eDriving High-Current Loads\u003c\/h3\u003e\u003cp\u003eWith 8mA sink\/source capability, this buffer can directly drive LEDs, relays, or other low-power loads, eliminating the need for additional driver transistors in simple indicator circuits.\u003c\/p\u003e\u003ch3\u003eLevel Shifting from TTL to CMOS\u003c\/h3\u003e\u003cp\u003eThe 74VHCT family features TTL-compatible inputs, allowing it to interface between 3.3V TTL logic outputs and 5V CMOS logic inputs, ensuring reliable logic level translation.\u003c\/p\u003e\u003ch3\u003eClock Distribution and Buffering\u003c\/h3\u003e\u003cp\u003eIt can buffer and invert clock signals to drive multiple loads, reducing signal degradation and ensuring clean, synchronized clock edges across a PCB.\u003c\/p\u003e\u003ch3\u003eIndustrial Sensor Interfacing\u003c\/h3\u003e\u003cp\u003eIn industrial controls, the buffer can condition and invert sensor output signals, providing a robust interface to a PLC or microcontroller input, with the 3-State feature allowing multiplexing of multiple sensors.\u003c\/p\u003e\u003ctable\u003e\n\u003ccolgroup\u003e\u003ccol\u003e\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \t\u003ctd\u003eProduct attributes\u003c\/td\u003e \t\u003ctd\u003eProperty Value\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eManufacturer\u003c\/td\u003e \t\u003ctd\u003eFairchild Semiconductor\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eProduct Series\u003c\/td\u003e \t\u003ctd\u003e74VHCT\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackaging\u003c\/td\u003e \t\u003ctd\u003eBulk | \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePart Status\u003c\/td\u003e \t\u003ctd\u003eActive\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eLogic Type\u003c\/td\u003e \t\u003ctd\u003eBuffer, Inverting\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Elements\u003c\/td\u003e \t\u003ctd\u003e2\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eNumber of Bits per Element\u003c\/td\u003e \t\u003ctd\u003e4\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eInput Type\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOutput Type\u003c\/td\u003e \t\u003ctd\u003e3-State\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eCurrent - Output High, Low\u003c\/td\u003e \t\u003ctd\u003e8mA, 8mA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eVoltage - Supply\u003c\/td\u003e \t\u003ctd\u003e4.5V ~ 5.5V\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eOperating Temperature\u003c\/td\u003e \t\u003ctd\u003e-40°C ~ 85°C (TA)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eGrade\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eQualification\u003c\/td\u003e \t\u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eMounting Type\u003c\/td\u003e \t\u003ctd\u003eSurface Mount\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003ePackage \/ Case\u003c\/td\u003e \t\u003ctd\u003e20-SOIC (0.209\", 5.30mm Width)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \t\u003ctd\u003eSupplier Device Package\u003c\/td\u003e \t\u003ctd\u003e20-SOP\u003c\/td\u003e \u003c\/tr\u003e  \u003ctr\u003e   \u003ctd\u003eROHS\u003c\/td\u003e   \u003ctd\u003e\u003cimg class=\"ROSHICON\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0910\/9756\/3425\/files\/ROHSICON.png?v=1757832376\"\u003e\u003c\/td\u003e  \u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdl\u003e\n\u003cdt\u003eQ: What is the logic family of the 74VHCT240ASJX?\u003c\/dt\u003e\n\u003cdd\u003eA: It belongs to the 74VHCT family, designed for high-speed CMOS operation with TTL-compatible inputs.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the function of this IC?\u003c\/dt\u003e\n\u003cdd\u003eA: It is an inverting buffer with 2 channels, ideal for signal inversion and buffering in digital systems.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the output type?\u003c\/dt\u003e\n\u003cdd\u003eA: It features 3-State outputs, allowing connection to shared buses with high-impedance control.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the operating voltage range?\u003c\/dt\u003e\n\u003cdd\u003eA: It operates from 4.5V to 5.5V, making it suitable for 5V systems.\u003c\/dd\u003e\n\u003cdt\u003eQ: What is the output current capability?\u003c\/dt\u003e\n\u003cdd\u003eA: It can source or sink 8mA per output, suitable for driving LEDs and logic inputs.\u003c\/dd\u003e\n\u003cdt\u003eQ: What package is available?\u003c\/dt\u003e\n\u003cdd\u003eA: It comes in a 20-SOIC (0.209\", 5.30mm Width) package, suitable for surface-mount PCBs.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Fairchild Semiconductor","offers":[{"title":"Default Title","offer_id":53666131869985,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/hqickey.com\/de\/products\/74vhct240asjx","provider":"HQICKEY","version":"1.0","type":"link"}